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Homepage>ASTM Standards>77>77.160>ASTM B0923-23 - Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry
Released: 15.11.2023

ASTM B0923-23 - Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry

Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry

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Standard number:B0923-23
Released:15.11.2023
Status:Active
Pages:4
Section:02.05
Keywords:density; metal powders; outgassing; pycnometry; refractory metal powders; skeletal density; skeletal volume;
DESCRIPTION

1.1 This test method covers determination of skeletal density of metal powders. The test method specifies general procedures that are applicable to many commercial pycnometry instruments. The method provides specific sample outgassing procedures for listed materials. It includes additional general outgassing instructions for other metals. The ideal gas law forms the basis for all calculations.

1.2 This test method does not include all existing procedures appropriate for outgassing metal materials. The included procedures provided acceptable results for samples analyzed during an interlaboratory study. The investigator shall determine the appropriateness of listed procedures.

1.3 Units—With the exception of the values for density and the mass used to determine density, for which the use of the gram per cubic centimetre (g/cm3) and gram (g) units is the longstanding industry practice, the values in SI units are to be regarded as standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.